Update nav.html

Author: Someshdiwan

site/_includes/nav.html

@@ -1,8 +1,7 @@
-<nav>
-  <ul style="list-style: none; display: flex; gap: 20px; background-color: #343a40; padding: 15px;">
-    <li><a href="https://someshdiwan.github.io/JavaEvolution-Learning-Growing-Mastering/README" style="color: #fff; text-decoration: none;">📘 Home</a></li>
-    <li><a href="https://someshdiwan.github.io/JavaEvolution-Learning-Growing-Mastering/Explaination" style="color: #fff; text-decoration: none;">📖 Explanation</a></li>
-    <li><a href="https://someshdiwan.github.io/JavaEvolution-Learning-Growing-Mastering/content" style="color: #fff; text-decoration: none;">📚 All Contents</a></li>
-    <li><a href="https://github.com/Someshdiwan/JavaEvolution-Learning-Growing-Mastering" style="color: #fff; text-decoration: none;">🔗 GitHub Repo</a></li>
-  </ul>
-</nav>
+<h2>📘 Navigation</h2>
+<ul>
+  <li><a href="{{ '/README.md' | relative_url }}">🏠 Home</a></li>
+  <li><a href="{{ '/site/Explaination.md' | relative_url }}">📖 Explaination</a></li>
+  <li><a href="{{ '/site/content.md' | relative_url }}">📚 All Contents</a></li>
+  <li><a href="https://github.com/Someshdiwan/JavaEvolution-Learning-Growing-Mastering" target="_blank">🌐 GitHub Repo</a></li>
+</ul>